221201120022007 has 4 divisors (see below), whose sum is σ = 221545134206200. Its totient is φ = 220857105837816.

The previous prime is 221201120021929. The next prime is 221201120022059. The reversal of 221201120022007 is 700220021102122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 221201120022007 - 2⁷ = 221201120021879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221201120020007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172007091132 + ... + 172007092417.

It is an arithmetic number, because the mean of its divisors is an integer number (55386283551550).

Almost surely, 2^{221201120022007} is an apocalyptic number.

221201120022007 is a deficient number, since it is larger than the sum of its proper divisors (344014184193).

221201120022007 is an equidigital number, since it uses as much as digits as its factorization.

221201120022007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344014184192.

The product of its (nonzero) digits is 448, while the sum is 22.

Adding to 221201120022007 its reverse (700220021102122), we get a palindrome (921421141124129).

The spelling of 221201120022007 in words is "two hundred twenty-one trillion, two hundred one billion, one hundred twenty million, twenty-two thousand, seven".